baber/WOPTO huggingface dataset:
Patent GB-1366437-A (GB)
Title: Heat exchangers
IPC: F28F9/26
Filed: 1972-10-11
Abstract: 1366437 Tubular heat exchangers KAMUI SANGYO CO Ltd 11 Oct 1972 [11 Oct 1971 16 Nov 1971 14 Jan 1972] 46760/72 Heading F4S In a shell and tube type heat exchanger comprising a plurality of finned cooling tubes 18, 19 extending between metal end plates 17a, 17b within a cylindrical body 1 closed by covers 2a, 2b, a plurality of apertures, e.g. 5a, 5b, 5c, 6b, 6c for use as drain holes are provided in the body adjacent the ends thereof. The holes are normally closed by bolts 11a, 11c, 12b, 12c &c. some of which additionally serve to secure support brackets 7, 8 to the body 1. In use, liquid to be cooled, on entering through an inlet port 3, is constrained to follow a tortuous path through the body 1 by means of a series of baffle plates before leaving through an outlet port 4. Coolant, e.g. water, enters and leaves the tubes by way of inlet and outlet chambers 14a and 15b, a return header 13 having a drainage plug 20 being provided at the opposite end of the tubes. The heat exchanger can either be attached to a horizontal surface, as shown, or to a vertical wall (see Fig. 3) via the brackets 7 and 8. The return header 13 may contain a zinc or magnesium rod to prevent electrolytic corrosion. In alternative embodiments (see Figs. 4-6), the covers are made of high polymer material, and the end plates are made of or covered with a thin sheet of high polymer material.
Patent GB-1398267-A (GB)
Title: Stator assemblies for dynamo electric machines
IPC: H02K15/02
Filed: 1971-10-08
Abstract: 1398267 Making stators; coiling helices LUCAS ELECTRICAL CO Ltd 13 Sept 1972 [5 Oct 1971] 46851/71 Headings B3A and B3E] A method of forming a stator assembly for a dynamo-electric machine, of the kind including a laminated member in the form of a helically coiled metal strip, comprises driving a metal strip 14 into a former 11 which helically coils the strip, and imparting a set to the strip as it is coiled by deflecting the strip relative to its initial plane during passage through the former, the set being such that the convolutions of the coiled strip produced are biased towards one another by their own inherent resilience, so that the helical coil is produced in a collapsed condition. The former 11 has an annular chamber 12 with a tangential inlet 13 through which mild steel strip 14 formed with a series of stator slots 15 is driven into the chamber. A gear-wheel (not shown), driven by an electric motor, has teeth which engage in the slots 15 to drive the strip. The strip abuts against a cylindrical convex surface 12a adjacent inlet 13, is deformed, and continues to encounter a cylindrical roll 17 over which the strip passes. It then passes between rolls 23, 24 of an adjustable roll assembly 19. The assembly includes a cylindrical carrier 21 mounted for angular movement in a bore 22 whose axis is inclined slightly upwardly. Carrier 21 includes an extension 25 furnishing a datum line (26), Fig. 3 (not shown), associated with a scale (27). A clamping screw 29 is provided in an arcuate slot (28) whereby the angular position of the carrier and rolls 23, 24 can be adjusted with respect to the former. The inclination of the gap (31), Fig. 2 (not shown), between the rolls 23, 24 determines the amount of deflection of the strip; adjustment of the gap being facilitated by eccentric mounting of roll 23. The rolls only engage the continuous part of the strip from which the slotdefining fingers extend. The strip is then deflected by a ramp 16 which guides the strip upwardly out of the plane of the inlet 13 and into an outlet (not shown) from which the strip issues as a helically wound coil. It leaves the former with a set which biases the coiled strip in a direction to move the convolutions of the coiled strip towards one another. A measuring arrangement (not shown) is utilized to gauge the amount of strip fed into the former and when a predetermined length has passed through the former a guillotine severs a helically wound coil of strip. In another embodiment the carrier 211 may be dispensed with and roll 23 carried by a movable arm. Roll 24 is fixed and movement of the arm adjusts both the gap 31 and the degree of strip deflection.
Patent GB-1285839-A (GB)
Title: Radiolytic destruction of non-biodegradable organic pesticides
IPC: C02F1/30
Filed: 1970-10-02
Abstract: 1285839 Radiation treatment UNITED STATES ATOMIC ENERGY COMMISSION 2 Oct 1970 [7 Oct 1969] 46876/70 Heading C1C A method of treating industrial waste solutions containing non-biodegradable organic pesticides comprises saturating and pressurizing the solution with oxygen or air at a partial pressure of at least 300 p.s.i.g. and then irradiating with gamma radiation said solution until the pesticide has been decomposed into non-toxic constituents to a degree sufficient for safe disposal. The treatment is particularly applicable to solutions containing halogenated hydrocarbons having a pesticidal action, i.e. dieldrin.
Patent GB-1472003-A (GB)
Title: Tape measure
IPC: G01B3/10
Filed: 1974-10-30
Abstract: 1472003 Tape measures KYOTO MEASURING INSTRUMENTS CORP 30 Oct 1974 46909/74 Heading G1M In a tape measure comprising a spring-biased flexible tape 14 adapted to be withdrawn through an aperture in a casing 1 in which it is housed, tapeasserting means is provided comprising a slidable elongate member 4 normally forced by spring 6 into engagement with the tape but displaceable away from the tape to release the tape when a button 7, contacting the member 4 and pivotally mounted on the casing at 8, is pressed. As shown, a projection 10 on the button engages a step 9 on the member 4 to move it away from the tape against the force applied by the spring 6. Walls 2, 3 formed integrally with the casing 1 serve as guides for the member 4.
Patent GB-1442612-A (GB)
Title: Toner for electrostatic imaging system
IPC: G03G15/20
Filed: 1973-06-05
Abstract: 1442612 Toner compositions A K CHATTERJI 5 June 1973 [5 June 1972] 46958/75 Addition to 1442611 Heading C3R [Also in Divisions G2-G3] An electrostatographic toner comprises a colourant, a polymer, an antiplasticizer and optionally a plasticizer; the absolute difference in solubility parameter of the antiplasticizer and plasticizer (where present) with respect to the polymer being more than 0À95 (cal./c.c)¢ and less than 0À95 (cal./c.c.)¢ respectively. In the example, the toner is a mixture of (a) 77 wt. per cent of an esterification product of ethylene oxide, bisphenol A, terephthalic acid and a trace of glycerol, the product containing an in situ plasticizer, (b) 15 wt. per cent of diphenyl isophthalate as antiplasticizer and (c) 8 wt. per cent of carbon black. Examples of toners containing added or in situ plasticizer but no antiplasticizer are also given.
Patent GB-1035880-A (GB)
Title: Bulldozer with adjustable stinger bit
IPC: E02F3/815
Filed: 1964-11-19
Abstract: 1,035,880. Dozer assemblies. CATERPILLAR TRACTOR CO. Nov. 19, 1964 [Dec. 23, 1963], No. 47127/64. Heading E1F. A dozer blade assembly in which a portion of the digging edge of the blade can be lowered beneath the rest of the digging edge.
Patent GB-1280366-A (GB)
Title: Reactivity and power distribution control of a nuclear reactor core
Inventor: FISCHER DAVID LLOYD
IPC: G21C5/00
Filed: 1969-09-25
Abstract: 1280366 Controlling reactors GENERAL ELECTRIC CO 25 Sept 1969 [26 Sept 1968] 47298/69 Addition to 1253912 Heading G6C The reactor core of parent Specification is modified in that there is disposed in the immediate vicinity of at least a portion of the burnable poison a nuclear fuel having a fission cross-section which is larger than the fission cross-section of nuclear fuel disposed at a greater distance from the burnable poison. This is preferably achieved by having those pellets of the fuel elements containing a burnable poison formed of a Gd-Pu mixture prepared in a manner similar to the Gd-U mixture of the prior patent, the remaining pellets being formed of UO 2 . Natural or depleted U may be used with the Gd-Pu mixture as a diluent, or other suitable materials such as Al 2 O 3  or ZrO 2  may be used for this purpose. The Gd-Pu mixture is in oxide form. Pu-burnable poison combinations other than mixtures may be used, e.g. the burnable poison may be in the form of discrete particles, lumps or wires in predetermined segments of the fuel elements with the Pu contained in the fuel adjacent to the burnable poison. The use of Pu-fuel in conjunction with the burnable poison improves the local power distribution and the control margin, as well as providing an effective means for the utilization of Pu-fuel.
Patent GB-1379338-A (GB)
Title: Grinding of optical lens blanks
IPC: B24B13/01
Filed: 1973-10-11
Abstract: 1379338 Grinding J & S WYLDE Ltd 11 Oct 1973 47457/73 Heading B3D A radially-slotted overlay for the grinding surface of a tool for grinding optical lens blanks comprises a piece of expanded ductile steel 18 cut, stamped or blanked from a ductile steel sheet which has been slotted, expanded and flattened to reduce its thickness to between 0À005 and 0À010 inch with the meshes or openings in the piece of expanded steel amounting to between 30 and 40% of its total area, and an adhesive coating or backing on one side of the piece of steel. The overlay, upon removal of a silicone-coated paper backing to expose the adhesive, may be fitted on the convex or concave surface of the grinding tool. The meshes are twice as long as they are wide being between 70 and 100 per foot in one direction and between 140 and 200 per foot in a direction at right angles thereto. The thickness of the expanded steel is preferably 0À007 or 0À008 inch and, as shown, the overlay has eight slots 24, four of which are larger than the others; the overlay may, however, have less than eight, e.g. one, or more than eight slots. The slots are 0À1 to 0À3 inch in width.
Patent GB-1424811-A (GB)
Title: Tetradentate metal complexes of monoazo dyes and their use as  pigments
IPC: C09D11/00
Filed: 1972-10-14
Abstract: 1424811 Metallised monoazo pigments CIBAGEIGY AG 14 Aug 1973 [14 Oct 1972] 47502/72 Heading C4P New metallised monoazo pigments of formula wherein A is an aryl or heterocyclic diazo component residue and B is an aryl or heterocyclic coupling component residue or A is an aryl diazo component residue and B is an aliphatic coupling component residue, A and B being optionally substituted by non water-solubilising groups, X is -O-, -NH- or -S- and Y is -O- or -NH- and M is Cu, Zn, Ni, Cd, Fe, Co, Mn, Cr, Zr or V are prepared by metallising the corresponding monoazo dyes. The pigments are used to colour inks, lacquers and paints and also in the mass dyeing of natural and synthetic resins in yellow and red shades.
Patent GB-1141644-A (GB)
Title: Electrical switching and memory devices
Inventor: DRAKE CYRIL FRANCIS
IPC: H01L45/00
Filed: 1965-11-10
Abstract: 1,141,644. Glass to metal seals; coating with glass. STANDARD TELEPHONES & CABLES Ltd. 10 Feb., 1967 [10 Nov., 1965], No. 47656/65. Heading C1M. [Also in Division H1] The body 32 of an electrical switching and memory device is of a glassy material comprising a glass-forming oxide, an oxide of a Group II metal and at least one oxide of a variablevalency metal different from the glass-forming oxide. Two spaced electrodes 30, 31 make intimate contact with the body 32. The glass-forming oxide may be B 2 O 3 , P 2 O 5  or SiO 2 , while the Group II metal oxide may be CaO, CdO or ZnO. The variable-valency metal may be Cu, Mn, Fe or W. As shown the body 32 is formed as a bead between two Pt wires 30, 31 arranged perpendicularly to each other, and spaced by about 50Á. The wires may alternatively be arranged end-to-end, and may be made of Mo. Further embodiments are described in which the glassy body is deposited on to a conducting layer on a substrate, e.g. by vacuum evaporation, by sputtering, or by a glow discharge through a low pressure mixture of oxygen and volatile compounds of the oxide forming elements. The body may also be formed by providing a conducting layer on an insulating substrate with a film of the metals which are to provide the metal oxide constituents of the body, and heating the structure in a vapour of the glass-forming oxide and oxygen. One or more metal electrodes are then evaporated on to the surface of the glassy layer.
Patent GB-1367776-A (GB)
Title: Process for forming a coating around a pipe for conveyiang hydrocarbons and the resulting conduit
IPC: F16L58/10
Filed: 1971-10-13
Abstract: 1367776 Leak resisting pipes for hydrocarbon conveyance INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS and SOC ANON POUR TOUS APPAREILLAGES MECHANIQUES 13 Oct 1971 [14 Oct 1970] 47710/71 Heading F2P A process, for forming a coating around a pipe for conveyance of hydrocarbons to prevent leakage consequent upon perforation of the pipe, comprises successively:-(a) covering the entire periphery of the pipe over substantially its entire length with a sheath formed of a material containing at least one curing agent and at least one blowing agent; (b) placing a tubular envelope around the sheath; (c) circulating a hot fluid through the pipe at a temperature and for a period sufficient to blow and cure the material so that stable pores are formed in the sheath; the cured material being expansible by contact with hydrocarbon whereupon the expansion is at least partly absorbed by a decrease in the pore volume of the sheath, and the volume per unit length of the sheath material prior to step (c) above not exceeding:- where V is the volume per unit length of the annular space between the pipe and the envelope and n is the expansion coefficient in % of the material forming the sheath when contacted by hydrocarbon. The conduit is preferably made by winding an uncured strip of elastomer 2 (Fig. 2) on to the pipe and then enclosing the wrapped pipe in an envelope (e.g. by bolting on half shells 3 or by winding). The elastomer is provided with blowing and curing agents so as to form said pores when hot fluid is passed through the pipe. The pores preferably have a diameter not exceeding 10% of the thickness of the layer after foaming. An adhesive may be used to bond the foam layer to the inner pipe. Materials.-The sheath forming material may be natural rubber, butyl rubber, polychloroprene; polybutadiene, unsaturated ethylenepropylene, polyepoxypropane, or urethane. Hydrocarbon soluble plasticizers should be avoided (e.g. heavy oils, aromatic oils, naphthenic oils, esters, butyl or isooctyl phthalates, halogenated hydrocarbons such as chlorinated paraffins). The strip material 2 may be prepared by callendering and the blowing agent may be selected from azoic derivatives. Alternatively the blowing agent may be a mixture of citric acid with a bicarbonate. The curing agent may be a product of sulphur and an accelerator such as zinc dialkyldithiocarbamate.
Patent GB-1240619-A (GB)
Title: Latch for vehicle doors
IPC: E05B85/24
Filed: 1969-09-29
Abstract: 1,240,619. Latches. ATWOOD VACUUM MACHINE CO. 29 Sept., 1969 [22 Oct., 1968], No. 47768/69. Heading E2A. A latch for a vehicle door comprises two latching elements 23, 24 mounted to rotate between two base plates, a pivoted pawl 45 to retain the elements in latching position, an actuator 60 and a pin 85 and slot 84 connection between the actuator and one of the plates which connection allows bodily shifting of the actuator between coupling and uncoupling positions with respect to the pawl, a pivoted locking lever 75 and a connection between the locking lever and the actuator comprising a finger 61 on the actuator extending into a slot 90 in the locking lever to cause the bodily shifting of the actuator between coupling and uncoupling positions as the locking lever is actuated. The latching elements 23, 24 are spring urged to engage a striker 25. Each element has a pair of teeth 43, 44 with one of which the pawl engages either in the safety or fully latching position. The latch is released from outside the vehicle by pressing a push button to move a rod 57 which engages a flange 59 on the actuation 60 which has a finger 61 which projects through a hole in the base plate 31 and which contacts a flange 64 on the pawl to pivot it to release the latch. The latch is also released by an outside handle connected to a rod connected to a bell crank engaging an arm of the actuator. The finger 61 of the actuator also engages in a slot 90 in the locking lever 75 so that when the lever 75 is pivoted to locking position the actuator pivot pin 85 moves downwardly in a slot 84 in the actuator to displace the finger 61 from the flange 64 of the pawl whereby the actuator moves idly when operated. The locking lever is operated by depressing an inside rod 77 connected to the lever or by an outer key operated link connected to a yoke 80 on the lever. To cancel inadvertent locking of the door when it is open the latch element 23 has a pin 91 which, when the latch element is rotated as the door closes, engages a lug 93 on the actuator to move the actuator to its coupling position and the finger 61 engages an edge of the slot 90 to return the locking lever 75 to unlocking position. To effect keyless locking, the locking lever is actuated and the push button is pressed to pivot the actuator during closing of the door to ensure that the pin 91 does not engage the lug 93 and so return the actuator to its operative position.
Patent GB-1243474-A (GB)
Title: Compositions comprising l-dopa
Inventor: BAYNE GILBERT MATHERS
IPC: A61K31/195
Filed: 1969-09-29
Abstract: 1,243,474. Compositions comprising dopa. MERCK & CO. Inc. 29 Sept., 1969 [1 Oct., 1968; 23 June, 1969], No. 47811/69. Heading A5B. Pharmaceutical compositions comprise L- dopa or a pharmaceutically acceptable salt thereof together with a α-hydrazino-α-R-3,4- dihydroxyphenyl-propionic acid or a pharmaceutically acceptable salt thereof, where R represents a hydrogen atom or a C 1 -C 4  alkyl radical. The hydrazine compound may be present as the D, L or racemic forms. A diluent, carrier, coating and/or excipient may be present.
Patent GB-1285973-A (GB)
Title: Control channel for an optimising control system
Inventor: SMITH LAWRENCE RAY
IPC: G05B13/02
Filed: 1969-10-02
Abstract: 1285973 Adaptive control WESTINGHOUSE ELECTRIC CORP 2 Oct 1969 [24 Oct 1968] 48440/69 Heading G3R Signals of opposite polarity dependent on a function of a variable of a perturbated process are alternately applied at intervals through MOSFET gates, an integrator and a memory to maintain the variable at a maximum or minimum. In Fig.2, an industrial process 10 is subject to a number of uncontrolled variables 11 and an analogue or digital computer 17 derives, from measurements 16, a signal 18 representing process performance which is to be maximized or minimized. Signals having amplitudes corresponding to the performance signal, but polarities opposite to each other, are produced at 30 and respectively applied to MOSFET gates 73, 74 which are opened by pulses from a clock 43 so that performance signal pulse trains of opposite polarity are alternately applied through a further clock-controlled MOSFET gate 80 to an amplifier 83 rendered integrating by a feedback condenser 82. Synchronously with the alternate operation of gates 73, 74, clock 43 applies an output 42 to produce, through a control element 14, alternate increase and decrease in the value of one variable of the process. If the performance signals corresponding to increase and decrease are of different magnitudes, indicating that performance is not a maximum or minimum, integrator 83 produces a resultant signal which, at the end of a period determined by a clock signal on line 70 operating a MOSFET gate 120, is transferred to a capacitor type memory 122 to adjust the process variable through an amplifier 39 in such a sense as to improve performance. The performance signals from computer 17 are also applied through similar optimizing controllers 33, 35 to control other variables of the process. A high input impedance of integrating amplifier 83 is obtained by a dual input through inter-connected MOSFETS 84, 85 and guard potential plates to minimize leakage arranged in the vicinity of the terminals of integrating resistor 81. Similar safeguards are provided for the input circuit of amplifier 39. A process variable may be manually adjusted in one sense or the other by appropriate operation of two-way switches 141, 145. Bumpless transfer of control between systems is referred to.
Patent GB-1066508-A (GB)
Title: Improvements in non-return valves for liquids or gases
IPC: F16K15/14
Filed: 1962-12-27
Abstract: 1,066,508. Valves. J. E. BROWN. Dec. 30, 1963 [Dec. 27, 1962], No. 48668/62. Heading F2V. A non-return valve for liquids or gases comprises a flexible tubular member 1 of elastic material having one end 5 closed but formed with an aperture 10, the walls of which are kept pressed together by the elasticity of the material, the aperture being formed as a longitudinal slit in the centre of a thin edge formed by the junction of an outwardly convex member 11 and an opposed outwardly concave member 12, the liquid or gas being admitted to the member through the open end 3 thereof. At the open end 3 is a beaded or rolled edge 4, so that it may be engaged at a tubular nozzle by stretching this edge. The closed end 5 is semicircular in cross-section, the upper member 11 remaining semicircular through the length of the valve whilst the lower member 12 changes from its concave shape at said closed end to a convex shape to form a circular tube at the open end. The tube walls are substantially thin for some way back from the slit. When the slit is open, the elliptical shape formed will have an area substantially equal to the internal cross-section of the nozzle 13 or pipe at which the valve is to be fitted. The tubular member 1 may be of rubber, synthetic rubber or a suitable plastics material.
Patent GB-1279638-A (GB)
Title: Devices for securing metal strips to supports
IPC: E06B3/58
Filed: 1969-10-06
Abstract: 1279638 Glazing; stud and socket fastening ALUMINIUM - WALZEWERKE SINGEN GmbH 6 Oct 1969 [18 Nov 1968] 48931/69 Headings E1R and E2B A fastening device comprises a stud 6 extending perpendicularly from a plane base surface 7 on a head 5, and a bore 12 inclined to surface 7 extending through the head and stud to receive a retaining pin 13. Stud 6 extends through an opening 3 in web 1 of window frame 2. Surface 7 abuts one side of the web and pin 13 and rib 11 on the stud engage the other side. Strip 8 is pressed over the device, which is slightly resilient, and retained by flange 10.
Patent GB-1012520-A (GB)
Title: Improvements in and relating to continuous casting
IPC: B22D11/12
Filed: 1962-12-31
Abstract: 1,012,520. Continuous-casting machines; rolling. W. HUFNAGL, and A. SCHMID Dec. 31, 1962 [Dec. 29, 1961], No. 49133/62. Headings B3F and B3M. Steel rod is produced using a continuous casting process by feeding molten metal 1 from a mould 2 between rolls 3, driven or freely rotatable rolls 6 mounted in a rotatable tool head 5, and guide rolls 7 and 8. A number of heads may be provided in tandem and each head may contain 2, 3 or 6 rolls forming a pass. The rolls may be positioned at an angle to the axis of movement of the workpiece and may be heated or cooled or used in an inert atmosphere. A profiled or ribbed product may be obtained using suitable rolls, and rolls of successive heads may be driven at different speeds.